Any ways to run multiple unity-built app on Mac?

Hello.
I want to test network using methods of my game, so I need to run multiple unity built apps in same time.
It was simply possible on PC by executing multiple times, but it doesn’t work in mac.
How can I run multiple unity built apps ?
Thanks in advance.

Here you go, open terminal on Mac and type this:

open -na unity or open -n -a unity